Abstract: The invention relates to a continuous casting mold, in particular a thin slab mold in which the flow of a liquid metal in the mold is influenced by a magnetic field generated by permanent magnets, wherein the permanent magnets have, over the width and/or height thereof, different magnetic strengths or are spaced from each other by different distances for a different field strength, so that to provide for variation of the magnetic field strength, the permanent magnets are differently adjusted in groups for changing a field strength distribution.

Abstract: The invention is directed to a device for casting strands of metal, in particular steel, with a material supply vessel, the liquid metal being delivered to the carrying side of a circulating conveyor belt by means of the pouring nozzle of the material supply vessel. The conveyor belt comprises a thin, heat-resistant belt which circulates between a first deflection roller and a second deflection roller and which is shaped after the first deflection roller and in the region of the outlet nozzle to form a trough for receiving the liquid metal and resumes the shape of a flat belt in proximity to the second deflection roller. In order to reduce stresses on the belt, it is proposed that at least one of the deflection rollers is cambered in a convex manner.

Abstract: The invention relates to a casting roll (1) for the casting of metal strip in the casting gap between two casting rolls with variable separation which are parallel and which can be cooled. The casting roll comprises a roll axle (3) with a roll casing (2) surrounding said axle and with adjustable convexity of the peripheral surface of said roll casing during operation by means of a hydraulic pressure cushion (14). The rotatable roll axle (3) is designed with a cylinder (9), comprising a piston (10), on at least one side (5, 7) of the casting roll (1), and a power system (11) is provided for exertion via the pistons (10) on the pressure medium to influence the convexity of the roll casing (2).

Abstract: A broadside (100) for the broadside of a funnel mold for the casting of metal. Known broadsides of this kind have at least one groove-shaped cooling channel (110) in the backside (R) of the broadside. Adjacent the cooling channel (110) on the backside of the broadside, recesses (A1, . . . , A5) are provided as well as filler elements (140-1, . . . , -5) for the at least partial sealing of the recesses. In order to constructively simplify the broadside in view of the adjustment of a generally constant flow rate of a cooling medium through the cooling channel, it is proposed to design the recesses (A1, . . . , A5) in such a way, that they cross the cooling channel (110) diagonally to its longitudinal direction. Moreover, the recesses (A1, . . .

Abstract: The invention relates to a die (1) with a funnel-shaped pouring region (7) for casting molten metal, comprising a die wall (2, 3, 4, 5) with a hot side, which is in contact with the molten metal, and a coating (12) on the hot side. The thickness of the coating (12) is smaller in a transition region (10) from the funnel-shaped pouring region (7) to the lateral parallel regions (11) than in the pouring region (7) and in the parallel region (11). The invention further relates to a method for coating a die (1) of said kind.

Abstract: An extrusion die (1) for the casting of liquid metals, in particular of liquid steel materials, has a heat flow density which is distributed non-homogenously over the die face. A homogenizing of the heat flow density can be obtained if the spacing between the hot side and the cooling duct base (=thickness (6) of the die wide side plate (2)) in the new state as a typical normal thickness (100%) is reduced by at least 20% to 80%, and a further reduction, obtained by means of reworking processes, of the thickness (6) which is initially reduced to 80% is restricted to 5 mm a final thickness (6a) by means of a final reworking process.

Abstract: The invention relates to a cooled continuous casting mold (1) for casting metal, especially steel, which has a casting format (GF) that is defined by respective two opposite broad faces (2, 3) and small faces (4, 5). The broad faces (2, 3) have a cooling area (6) which designed for the maximum casting width and comprises a plurality of cooling channels (7) extending in the direction of casting and being connected to a coolant circuit. The small faces (4, 5) can be adjusted to a predetermined casting format having a corresponding casting width. The aim of the invention is to provide a continuous casting mold for slab formats, especially thin slabs, which allows to adjust an even working end temperature of the broad sides and especially to reduce a considerable temperature drop in the neighborhood of the small faces while at the same time allowing to adjust different casting formats, especially smaller casting formats as compared to the maximum casting format.

Abstract: A casting machine for producing cast strands (2) in shape of billets or ingots includes a continuous casting mold (1) for forming a cast strand (2) that is deflected by a cast radius (R) from a vertical casting direction in horizontal casting direction (13), a straightening region (A) having straightening profiled roller pairs (4, 5, 6) with positive diametrical regions (h, b) or negative diametrical regions (?h, ?b) for forming the cast strand with one or several projections (h, b) or recesses (?h, ?b); and with at least one pair of straightening profiled rollers (4 to 6) provided on both sides of a tangent point (3) of the cast radius (R) and a soft-reduction region (B) adjoining the straightening region and having at least one roller pair (7, 8, 9) with thickness-reducing smooth rollers.

Abstract: A method for semi-endless or endless rolling by casting a metal strand, especially a steel strand, which is cut to length as required after solidification, wherein the cut lengths of cast strand are fed into a roller hearth furnace for heating and homogenizing at rolling temperature and are then fed at rolling temperature into a rolling mill to be rolled out. The continuous casting is continued without interruption during the rolling operation, and a sufficient buffer time for a roll change is maintained in the rolling mill. For carrying out a roll change, the casting rate is reduced as a function of the feed rate of the rolling mill and/or the roll-changing time, and/or the buffer length of the roller hearth furnace, and/or the final rolled thickness after the strand has been cut to length.

Abstract: The invention relates to a casting roller (1), for a double-roller continuous casting machine, in particular for the casting of a steel strip, comprising a cylinder sleeve (2) which may rotate about a fixed axle (5). Intermediate rings (7b, 7c, 7d) rotating with the cylinder sleeve (2) are arranged between the cylinder sleeve (2) and the axle (5), which are provided with radial pressure means (9), acting on the cylinder sleeve (2). The above comprise a pressure chamber (10), pressurized with a fluid pressure medium and acting on a pressure ring (24) fixed to the inner wall of the cylinder sleeve (2), which may be deformed in the radial direction by inductive heating or radiated heat. The external profile of the casting roller (1) may be globally altered or local fine adjustments made by pressurizing the pressure chamber (10) with the pressure medium, or by heating the pressure ring (24).

Abstract: The invention relates to a continuous casting mold, in particular a thin slab mold in which the flow of a liquid metal in the mold is influenced by a magnetic field generated by permanent magnets, wherein the permanent magnets have, over the width and/or height thereof, different magnetic strengths or are spaced from each other by different distances for a different field strength, so that to provide for variation of the magnetic field strength, the permanent magnets are differently adjusted in groups for changing a field strength distribution.

Abstract: The invention relates to a continuous casting mould for liquid metals, especially for liquid steel, comprising steel charging plates (2) which are surrounded by water reservoirs (1), cassette-type copper plates (3) arranged against the same, end plates (7), if needed, for the thickness and/or the width of the cast billet, and coolant channels (9). The aim of the invention is to take measures to counteract the high temperatures in the meniscus region (13) using appropriate embodiments of the copper plates (3) and/or the steel charging plates (2). To this end, the thickness (10) of the copper plates (3) between the coolant (11) and the hot side (3a) of the copper plates varies along the width (2×L) and/or in terms of the height (12).

Abstract: A broadside (100) for the broadside of a funnel mold for the casting of metal. Known broadsides of this kind have at least one groove-shaped cooling channel (110) in the backside (R) of the broadside. Adjacent the cooling channel (110) on the backside of the broadside, recesses (A1, . . . , A5) are provided as well as filler elements (140-1, . . . , -5) for the at least partial sealing of the recesses. In order to constructively simplify the broadside in view of the adjustment of a generally constant flow rate of a cooling medium through the cooling channel, it is proposed to design the recesses (A1, . . . , A5) in such a way, that they cross the cooling channel (110) diagonally to its longitudinal direction. Moreover, the recesses (A1, . . .

Abstract: The invention relates to a method of operating a strip casting machine for producing a metal strip, during which molten metal is continuously poured between two casting rolls (1, 2) that form a casting gap. Lateral seals (10) having sealing plates (11) are provided for laterally delimiting the casting gap, whereby the sealing plates (11) are placed or pressed with a preset placement or pressing force, whose magnitude can be set, against the end surfaces of the casting rolls (1, 2). The sealing plates (11) are, in repeatable stop-and-go steps, placed with a preset force and time against the end surfaces of the casting rolls (1, 2) and are held in the placing position for a preset time. This enables a distinct reduction in the wear of the sealing plates and of the casting roll end surfaces.

Abstract: A method of producing cast strands (2) in shapes of billets or ingots wherein the strand (2) is guided between pairs of rollers (4 to n) and is formed in the straightening region (A), with the use of straightening profiled rollers (4 to 6) with one-sided or multiple-sided projections (h, b) or recesses (-h, b), and in the casting direction (10), downstream of the straightening region, the strand is subjected to a soft-reduction with at least one roller pair (7 to 9) with thickness-reducing smooth rollers. The invention also relates to a casting machine provided with correspondingly formed rollers.

Abstract: The invention relates to a continuous casting mold, in particular a thin slab mold in which the flow of a liquid metal in the mold is influenced by a magnetic field generated by permanent magnets, wherein the permanent magnets have, over the width and/or height thereof, different magnetic strengths or are spaced from each other by different distances for a different field strength. To provide for variation of the magnetic field strength, the permanent magnets are differently adjusted in groups for changing a field strength distribution.

Abstract: The invention relates to a method of operating a strip casting machine for producing a metal strip, during which molten metal is continuously poured between two casting rolls (1, 2) that form a casting gap. Lateral seals (10) having sealing plates (11) are provided for laterally delimiting the casting gap, whereby the sealing plates (11) are placed or pressed with a preset placement or pressing force, whose magnitude can be set, against the end surfaces of the casting rolls (1, 2). The sealing plates (11) are, in repeatable stop-and-go steps, placed with a preset force and time against the end surfaces of the casting rolls (1, 2) and are held in the placing position for a preset time. This enables a distinct reduction in the wear of the sealing plates and of the casting roll end surfaces.

Abstract: The invention relates to a method and casting roller plant for the semi-endless or endless rolling by casting of a metal, in particular a steel strip (1a), which may be transversely separated as required after solidification. The casting strip part lengths (20) are fed to a roller furnace (2) for heating and equilibration at the rolling temperature and the partial lengths (20) for rolling out are fed to a rolling train (3) for rolling, whereby the strip casting is continued uninterrupted during the rolling operation. According to the invention, a closer matching of the strip casting and the rolling can be carried out, whereby the casting speed (Vc) is reduced for a roller change such that between the end of rolling a preceding multiple length (21) and the insertion of a new partial length (20) or multiple lengths (21) into the rolling gear a sufficient buffer time for a roller exchange is provided.

Abstract: A method for semi-endless or endless rolling by casting a metal strand, especially a steel strand, which is cut to length as required after solidification, wherein the cut lengths of cast strand are fed into a roller hearth furnace for heating and homogenizing at rolling temperature and are then fed at rolling temperature into a rolling mill to be rolled out. The continuous casting is continued without interruption during the rolling operation, and a sufficient buffer time for a roll change is maintained in the rolling mill. For carrying out a roll change, the casting rate is reduced as a function of the feed rate of the rolling mill and/or the roll-changing time, and/or the buffer length of the roller hearth furnace, and/or the final rolled thickness after the strand has been cut to length.

Abstract: The invention is directed to an immersion nozzle for a metallurgic vessel arranged upstream of a casting device, in particular a continuous casting mold or a twin roller, in which a slit-shaped pour-out opening (2) having a length that is several times greater than its width is provided in the base area. The cross section widens in the direction of its mouth from a round inlet cross section to a mouth cross section whose one semiaxis is smaller than, and whose other semiaxis extending perpendicular thereto is greater than, the semiaxis of the round inlet cross section and whose base shape corresponds to that of the body of revolution of an ellipse or of an oval mouth cross section around the greater semiaxis, and the slit-shaped outlet opening extends in direction of the greater semiaxis.